Extent of human radio broadcasts photo

[collinsmark]

Why couldn't we take a picture from that angle?

My goodness, Micro. If I didn't know better. ...

Anyway here is one of the presently most famous pictures of the Milky Way galaxy, taken by Dr. Axel Mellinger.
http://home.arcor.de/axel.mellinger/

"Between October 2007 and August 2009, I assembled a new digital all-sky mosaic image from more than 3000
individual CCD frames. Using an SBIG STL-11000 camera, 70 fields (each covering 40° × 27°) were imaged from
dark-sky locations in South Africa, Texas and Michigan."​

http://home.arcor.de/axel.mellinger/mwpan2_Aitoff_1200x600.jpg

========================

...I first saw this mosaic, in poster form, at the local telescope shop. My then-girlfriend, the telescope shop guy, and
myself were all admiring it.
...My then-girlfriend asked, "where's Earth?"
Before I could address her question the telescope shop guy pointed to somewhere in the picture and said, "I think
it's right around here."
... I thought to myself, "Ahhh, Jasus balls, no! Not the telescope shop guy!" I cried a little inside.

[Edit: Just in case you didn't get that, Earth (and the whole solar system for that matter) is not in the picture
Earth is where the camera is!]

 

[jobyts]

Why the radio waves don't go further? It's just another EM wave, right?

 

[Evo]

Radio waves in a vacuum travel at the speed of light.

 

[jobyts]

Radio waves in a vacuum travel at the speed of light.

Yes, so why are the radio broadcast limited to just the blue dot shown?

Edit: Nevermind. Just went through all the posts.

 

[Evo]

Yes, so why are the radio broadcast limited to just the blue dot shown?

Edit: Nevermind. Just went through all the posts.

The thread title might have given you a hint.

 

[jackmell]

Hi,

I'd like to correct my post above: After talking to some in the Astronomy forum, the original picture posted in the thread is what is believed to be a relatively accurate description of what the Milky-way would look like from a distance. It is however not quantitative as we cannot easily measure stellar distances in the galaxy beyond about 4000 light years and so is only a rendition. The picture is not some other galaxy as I original believed. Also, the picture of the Milky-way I was referring to above was similar to the picture posted by Collins above which is inside looking out at the Milky-way (I believe).